1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f5116dc6773b2600511d1afcc8d02d473cf613aad618241d213c9765e194b54. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/144e84db-0a21-43de-8a55-653082fe8764.json and https://artists.proofprofile.net/proofs/artist/144e84db-0a21-43de-8a55-653082fe8764.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
LIAR GAME 2 〜シーズン2 & 劇場版 オリジナル・サウンドトラック〜
LIAR GAME -再生- オリジナル・サウンドトラック
何者(オリジナル・サウンドトラック)
{"copyright_id":"0x80f6fc87a8a98e724a097e6587359cebe6b14897dd2309aec16b0a9e9c7c6da1","isrc":"JPWP01671289","name":"NANIMONO (feat. 米津玄師)","registered_at":"2026-06-04T09:40:04Z","spotify_id":"21YjXHKo8hc5fOK7sYtixB","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f6fc87a8a98e724a097e6587359cebe6b14897dd2309aec16b0a9e9c7c6da1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/21YjXHKo8hc5fOK7sYtixB.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/21YjXHKo8hc5fOK7sYtixB.
{"copyright_id":"0x25be946ca3ef9973124fb1f09fdeed9701a761eb125859bb17152125367f9833","isrc":"JPWP01671290","name":"NANIMONO (feat. 米津玄師) - extended mix","registered_at":"2026-06-20T21:01:55Z","spotify_id":"65SAq3iQokPus7KklLNyx6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25be946ca3ef9973124fb1f09fdeed9701a761eb125859bb17152125367f9833. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/65SAq3iQokPus7KklLNyx6.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/65SAq3iQokPus7KklLNyx6.
NANIMONO (feat. 米津玄師) - Danny L Harle remix
{"copyright_id":"0x48c77c597814a46e4a1388a865f87139303c7186e216b5f0cce4ef156028f13b","isrc":"JPWP01671292","name":"NANIMONO (feat. 米津玄師) - TeddyLoid remix","registered_at":"2026-06-22T19:14:11Z","spotify_id":"34oTQSgLrJHQW3BsVidNQG","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48c77c597814a46e4a1388a865f87139303c7186e216b5f0cce4ef156028f13b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/34oTQSgLrJHQW3BsVidNQG.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/34oTQSgLrJHQW3BsVidNQG.
{"copyright_id":"0xe3027d35cdbe9cfdeda4db23e358dbb27cd451dfa0febc6fd38c85eebaf3303d","isrc":"JPWP01671293","name":"NANIMONO (feat. 米津玄師) - banvox remix","registered_at":"2026-06-26T15:41:09Z","spotify_id":"52PJWKJTA1HYmtFSe92GRv","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3027d35cdbe9cfdeda4db23e358dbb27cd451dfa0febc6fd38c85eebaf3303d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/52PJWKJTA1HYmtFSe92GRv.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/52PJWKJTA1HYmtFSe92GRv.
Crazy Crazy (feat. Charli XCX & Kyary Pamyu Pamyu)
Crazy Crazy (feat. Charli XCX & Kyary Pamyu Pamyu) - remix
Love Don't Lie (Ultra Music Festival Anthem) (feat. ROSII)
Love Don't Lie (Ultra Music Festival Anthem)
Love Don't Lie (Ultra Music Festival Anthem) [feat. ROSII]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e8402a3134d35c4d2433bfc9f44ae78de4ee16d2e12459a9c767c0ba22824c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4nOcwlzhIDl4IRgruK0uH8.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4nOcwlzhIDl4IRgruK0uH8.
{"copyright_id":"0x43a3cfe945848f63ba69451f5b8187bc551289e8e7de87308f9d588f70d16a82","isrc":"JPWP01671841","name":"Crazy Crazy (feat. Charli XCX & Kyary Pamyu Pamyu)","registered_at":"2026-06-06T16:57:24Z","spotify_id":"69faP1Sc35RYhfaP3tNCjk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a3cfe945848f63ba69451f5b8187bc551289e8e7de87308f9d588f70d16a82. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/69faP1Sc35RYhfaP3tNCjk.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/69faP1Sc35RYhfaP3tNCjk.
{"copyright_id":"0x80f6fc87a8a98e724a097e6587359cebe6b14897dd2309aec16b0a9e9c7c6da1","isrc":"JPWP01671289","name":"NANIMONO (feat. 米津玄師)","registered_at":"2026-06-04T09:40:04Z","spotify_id":"5uodb4Kj8xSuxurunWcbPJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f6fc87a8a98e724a097e6587359cebe6b14897dd2309aec16b0a9e9c7c6da1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5uodb4Kj8xSuxurunWcbPJ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5uodb4Kj8xSuxurunWcbPJ.
{"copyright_id":"0xb4adf5a80da053db88c916d55594a4b0eeff739897065a67ca9eda5fc568850f","isrc":"JPWP01870002","name":"Source of Light","registered_at":"2026-06-23T02:01:05Z","spotify_id":"4efCveiuSKoks4W374AXlq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4adf5a80da053db88c916d55594a4b0eeff739897065a67ca9eda5fc568850f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4efCveiuSKoks4W374AXlq.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4efCveiuSKoks4W374AXlq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b571520bc010ee0ff22bbd838ea4e04a485c3393d149526662ea9896cfb99ea. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6Hf924wbgpAc1jdqQMAteB.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6Hf924wbgpAc1jdqQMAteB.
{"copyright_id":"0x4dbfd79d11047ec0f74d4d866fc0a0fdab790b3e456a8a2d1b0273b9ea808273","isrc":"JPWP01870004","name":"Jump in Tonight (feat. 眞白桃々)","registered_at":"2026-06-18T14:39:50Z","spotify_id":"0YHT1s8MBXvBiXw4IENLkv","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dbfd79d11047ec0f74d4d866fc0a0fdab790b3e456a8a2d1b0273b9ea808273. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0YHT1s8MBXvBiXw4IENLkv.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0YHT1s8MBXvBiXw4IENLkv.
Wire Frame Baby (feat. MAMIKO[chelmico])
{"copyright_id":"0x5f8a6d2b79a8c5e27cb19656ca5cf0ad48970f54bf0b469e35ad4c58cf9f6f8a","isrc":"JPWP01870006","name":"Wire Frame Baby (feat. MAMIKO[chelmico])","registered_at":"2026-06-19T09:37:38Z","spotify_id":"4Pn1ztkwMZbzQOQxqRyqfZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f8a6d2b79a8c5e27cb19656ca5cf0ad48970f54bf0b469e35ad4c58cf9f6f8a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4Pn1ztkwMZbzQOQxqRyqfZ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4Pn1ztkwMZbzQOQxqRyqfZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6941e0c64862f25af718b4c42306787fdbd7b8781a90218c3fa6279342cdc70d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1S5pOi4NYMabwxE3reN2Aw.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1S5pOi4NYMabwxE3reN2Aw.
White Cube (+Voice Version) [feat. 苺りなはむ]
「８番出口」オリジナル・サウンドトラック
{"copyright_id":"0x24f62a3a8207adbd0b295bb1ce902de5f93f3073ab14483fada8135f170c2782","isrc":"USUM71704869","name":"Stay - Yasutaka Nakata Remix","registered_at":"2026-06-19T09:36:46Z","spotify_id":"3I2gTrQMzIjk9jKVD6qEjT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f62a3a8207adbd0b295bb1ce902de5f93f3073ab14483fada8135f170c2782. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3I2gTrQMzIjk9jKVD6qEjT.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3I2gTrQMzIjk9jKVD6qEjT.
Take My Heart Away - Yasutaka Nakata Remix
{"copyright_id":"0xa189fa511f62a45cd08ddca86cdad16915643313bda376e213bdbdcb19c32776","isrc":"USZ4V2200038","name":"Take My Heart Away - Yasutaka Nakata Remix","registered_at":"2026-06-24T10:54:18Z","spotify_id":"2keaT2K73zVuKZeAWEemGO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa189fa511f62a45cd08ddca86cdad16915643313bda376e213bdbdcb19c32776. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2keaT2K73zVuKZeAWEemGO.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2keaT2K73zVuKZeAWEemGO.
ピース/この道を行こう/ナイショデオネガイシマス
{"copyright_id":"0x71550895deecc26e27f157747e0db2164f2ddf8b8bc2c91b896720e6b5917635","isrc":"JPWP01570256","name":"熱帯夜 - Yasutaka Nakata(CAPSULE)Remix","registered_at":"2026-06-21T22:04:49Z","spotify_id":"7EcF5urXFC6WPejctRkXl3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71550895deecc26e27f157747e0db2164f2ddf8b8bc2c91b896720e6b5917635. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7EcF5urXFC6WPejctRkXl3.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7EcF5urXFC6WPejctRkXl3.
Game Changers (LAST BOSS Mix) with Yasutaka Nakata